Improvement in means for lessening noise on railways



N. KENNY. Means for Lessenng Noise on Railways.

'Patented Oct. 1,1878.

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PEYERS. PHOTQLITMOGRAPHER, WASHINGTON.

UNITED STATES PATENT OEEIoE.

NICHOLAS KENNY, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF HIS RIGHT TO ASHER N. LUCHS AND JACOB N. LUCHS.

IMPROVEMENT IN MEANS FOR LESSENING NOISE ON RAILWAYS.

Specification forming part of Letters Patent No. 208,475, dated October 1, 1878; application led September 12, 1878.

To all whom it may concern:

Be it known that I, NronoLAs KENNY, of the city of New York, State of New York, have discovered and invented a New` Process for Lessening the Noise Made by Railroads when in Operation, of which the following is a specification My invention is designed to afford a simple, effective, and economical means of lessening the noise upon railroads caused by the passage of trains over the same, particularly in elevated railroads, such as those now in operation in New York city.

This object I effect by reducing the soundconducting capacity of the rails, stanchions, girders, columns, or other portions of the railway, by letting into the ends of the rails, co1- umns, or girders lead, or a like material of low capacity for the transmission of sound, whereby the sound of the parts will be deadened and greatly diminished.

In the drawings, Figure l represents a view, partly in elevation and partly in section, of a rail having my invention applied thereto. Fig. 2 represents an end view of my improved rail.

The letters A A represent holes, which are drilled or otherwise formed in the ends of a rail or other portion of a railway-structure, and which are filled with lead, or a like material having low capacity for the transmission of sound. In practice, I have found lead to answer well for the purpose, as it may be readily filled into the holes when in a iiuid condition.

constructed.

I am aware that lead and like non-vibratory substances have heretofore been employed in compound rails, and in open slots in the body of rails; but I have found such objectionable, because the material inserted was liable to jar out, and I therefore do not claim these constructions; but

An integral rail having a mass of lead or like non-vibratory substance inserted in a cavity sunk into the body of the rail from the end faces thereof, as and for the purposes set forth.

Dated New York, August 31, 1878.

NICHOLAS KENNY.

In presence of- ELBERT L. BURNHAM, Jr., CHARLES A. MEYER. 

